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Fail2ban

An intrusion prevention software framework
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What is Fail2ban?

It is an intrusion prevention software framework that protects computer servers from brute-force attacks. Written in the Python programming language, it is able to run on POSIX systems that have an interface to a packet-control system or firewall installed locally, for example, iptables or TCP Wrapper.
Fail2ban is a tool in the Security category of a tech stack.
Fail2ban is an open source tool with 10.2K GitHub stars and 1.2K GitHub forks. Here’s a link to Fail2ban's open source repository on GitHub

Who uses Fail2ban?

Companies
14 companies reportedly use Fail2ban in their tech stacks, including SMARTTechStack, ApisCP, and Ziyuno.

Developers
43 developers on StackShare have stated that they use Fail2ban.

Fail2ban Integrations

Decisions about Fail2ban

Here are some stack decisions, common use cases and reviews by companies and developers who chose Fail2ban in their tech stack.

Needs advice
on
Fail2banFail2ban
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Microsoft AzureMicrosoft Azure

I am the Systems Administrator for a (total online) Microsoft 365, and Microsoft Azure, Sentinel Cyber school. I have been searching for over a year about ways to combat logins from all over the globe. I receive a daily report of logins that shows me who and where from they are trying to get access to our domain. I came across this article and I am trying to incorporate it into our Microsoft 365, and Azure, Sentinel; it seems it is almost straight forward until about halfway through then I don't seem to get where to create a playbook from. If someone has figured out a way to install Fail2ban in a Microsoft Azure, Sentinel, and 365 Defender location I would greatly appreciate the help, or if someone could help me get through the playbook section that would also be very helpful.

Thank you Morris

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Fail2ban Alternatives & Comparisons

What are some alternatives to Fail2ban?
Ossec
It is a free, open-source host-based intrusion detection system. It performs log analysis, integrity checking, registry monitoring, rootkit detection, time-based alerting, and active response.
OpenSSL
It is a robust, commercial-grade, and full-featured toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols. It is also a general-purpose cryptography library.
Let's Encrypt
It is a free, automated, and open certificate authority brought to you by the non-profit Internet Security Research Group (ISRG).
Ensighten
Ensighten is a comprehensive website security company, offering next generation compliance, enforcement and client-side protection against data loss, ad injection and intrusion.
Authy
We make the best rated Two-Factor Authentication smartphone app for consumers, a Rest API for developers and a strong authentication platform for the enterprise.
See all alternatives

Fail2ban's Followers
57 developers follow Fail2ban to keep up with related blogs and decisions.